Bullet-casting machine.



No. 647,3!9. Patented Apr. 10,1900.

J. J. NASH.

BULLET CASTING MACHINE.

(No mini.)

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Attorney-if N f N THE uonnfs PEIERS 00.. PNOTO-LITHQ. wnsmum'on, o. c

No. 6471,3I9.

Patented Apr. 10,1900.

J. J. NASH.

BULLET CASTING MACHINE.

(Application filed Aug. 23, 1899.)

4 Sheets-Sheet 2'.

(No Model.)

Inventor. 11152 Attorney,

Witnesses.

Patented Apr. I0, I900.

No. 647,3l9.

.1. .1. NASH. BULLET CASTING MACHINE.

(Application filed Aug. 28, 1899.) (No Model.) 4 Sheets-Sheet 3.

I nv en or,

Attorney? V? itnesses.

Tm: norms rrrzns co, vuofouma, WASHINUTON, n, c.

Paten tod Apr. l0, I900. J. J. NASH. BULLET CASTING MACHINE.

(Application filed Aug. 23, 1899.)

4 Sheets-Sheet 4.

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. ITNESSES IN VENTOH mi /v ATTORNEY],

UNITED STATES PATENT ()FFICE.

JOHN J. NASH, OF NE\V IIAVEN, CONNECTICUT.

BULLET-CASTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 647,319, dated April10, 1900.

Application filed August 23, 1899.

T0 aZZ whom it may concern:

Be it known that I, JOHN J. NASH, of the city and county of New Haven,in the State of Connecticut, have invented a new and useful Improvementin Bullet-Casting Machines, of which the following is a full, clear,andexact description when taken in connection with the accompanyingdrawings, which form a part thereof, and in which Figure 1 represents aplan view of a machine embodying rnyinvention; Fig. 2, a side elevationof the same; Fig. 3, a sectional view on lines 3 3 of Fig. 1 ofa detailof the machine; Fig. 4, atransverse section on lines 4: 4 of Fig. 1;Figs. 5 and 6, a detail view of one of the bottom mold-links and of oneof the top links, respectively; Fig. '7, a detail view, in sideelevation, of the knife and associated parts; Fig. 8, a plan view of themachine with the upper chain and melting-pot removed; and Fig. 9, across-sectional view of the links, shown enlarged and slightlyseparated.

In all figures similar letters of reference represent like parts.

This invention relates to machines for automatically rough castingbullets and similar articles; and it consists in the variousimprovements and novel combinations of parts set forth and claimedhereinafter.

Referring to the drawings, the parts designated by the letter Arepresent the bed or table of the machine, on which are located twopairs of horizontally-rotatin g sprocket-wheels B and B, mounted on thevertical shafts b and b. Each pair of rotary shafts is rotatedsimultaneously by means of bands b passing over pulleys b rigidl-y keyedto the shafts, Figs. 2 and 4., or by any suitable gearing or othermeans, while a shaft of each pair is operated by a band b passing overrigidlymounted pulleys 11 On one shaft, Fig. 4, is shown a driving-wheelb.

Passing around and'operated by each pair of sprocket-wheels B and B aretwohorizontally-moving endless chains C and C, the composite parts orlinks 0 and c of which are formed as follows: Each link 0 or c isprovided on one side with one or more semicylindrical slots D of theform of substantially one-half the bullet or other article to be molded.At the upper end of the slot D is a smaller slot d, extending to the topof the link,

Serial No. 728,191. (No model.)

Fig. The links are connected by means of extensions E at each end, whichoverlap and are pivoted to similar extensions on the preceding andsucceeding links. Then the links 0 are traveling on that portion of thechain 0 which is adjacent to the chain C, the slots D of the links 0correspond with the slots D in the links a, so that together they form acomplete mold for a bullet or other article, as shown in Fig. 4. Thelinks of the two chains are forced into contact with each other at thispoint by means of slides F and G, on which they travel. The slide F isheld in place by coiled springs f, (or other means,)

the tension of which is regulated by screws f, while the slide G ispositively adjusted by means of screws 9. Idler sprocket-wheels H areshown in Fig. 1 bearing against the sides of ,the links of the twochains to force them together before passing into the slides F and G.The links sand 0 are locked to move synchronously by means of one ormore studs W on one link engaging in a socket to on the other.

Rotating in two slots at on the bed A of the machine are two verticalsprocket-wheels K, which are mounted on shafts 7c. The wheels K carry anendless distributing-chain L, composed of links Z of corresponding sizewith the links cand o. The chain Ltravels in a vertical plane, and itsupper strand or portion passes over and rests on the links 0 and c ofthe chains C and C when in contact with each other. The links Z are allprovided with longitudinal slots l on their upper sides, from whichdepend perforations Z, adapted to fit over the smaller slots at in thelinks 0 and 0 when the links of the three chains are traveling incontact, Figs. 3 and 4. The links l are pivoted in succession by meansof connections M, similar to the connections E on the links C and 0.Lateral angular projec tions N on the links Z are engaged by twosprockets on the outer edge of the surface of the wheels K, and theprojections N are also engaged by similar lugs or sprockets n on theupper sides of the links a and c. As the links cand c are positivelydriven by the wheels B and B and engage the links Z by lugs n the chainL is moved synchronously with the chains C and C.

the molten metal, which passes out through the faucet or outlet pintothe longitudinal slot Z in the links Z of the chain L.

A knife T is shown, Fig. 7, pivoted on a bracket S, mounted on the bed Aof the machine directly under the upper strand of the vertical chain Land located at a point Where the two horizontal chains have begun toseparate in the course-of their revolutions. A Weight t or spring 25 (orboth) is adapted to press the cutting edge of the knife against thebottom of the links, (allowing also a slight movement for irregularitiesin the under surface of the links,) so that the molded bullets which maybe held (after the links 0 and c with the half-molds have separated) bythe extra metal in the links Z are severed by the knife T and fall intoa proper receptacle. (Not shown.)

The operation of the device is as follows: The links 0 and c of thehorizontal chains 0 and G as they are revolved by the sprocketwheels Band B (in the direction of the arrows, Fig. 1) are brought in contact asthey pass over the slides F and G. The chains move synchronously and areadjusted so that each of the links c'is adapted to correspond with oneof the links 0, and the half-molds D come opposite each other to make acomplete cylindrical mold with mouth d. are held in proper connection bymeans of the locking-stud W and socket to. At the same time thedistributing-chain L is driven by the lugs 02 on the links 0 and cengaging the lateral projection N on each of the links Z. By this meansthe links of the chain L are moved synchronously with the links of thehorizontal chains 0 and C, and when the links a and c are in contact (asabove described) a link Z is adjusted to fit over each pair of links 0and 0, so that the depending perforations Z are directly over the mouthsd of the molds. Such is the position of the links Z, c, and 0 when theypass under the outlet p of the pot P, Figs. 1, 2, and 4, so that themolten metal as it is poured into the longitudinal slot Z in the links Zwill be distributed by passing down through the perforations Z into themolds D, Figs. 3 and 4. The bullets are hardened by cooling as the linksare moved onwarduntil the point is reached where the links 0 and 0, eachwith a half-mold, move v awayfrom each other in their journey aroundtheir respective sprocket-wheel B and B. At

this point the bullet will naturally fall into a proper receptacle,except (as is apt to be the case) the metal in the linkZ has not beenentirely exhausted, but some is still retained in the perforations Z.This metal hardens with the bullet, and when the links 0 and c separatethe bullet is left hanging to the under side of the link Z, Fig. 7, bythe extra metal in the link Z. As the linkZproceeds the bullet comes incontact with the knife T, which severs it close to the under surface ofthe link Z. The metal remaining in the link Z is dropped The links fromthe link as the link is turned over in its revolving about thesprocket-Wheel K.

I am aware that a single endless chain has been used to mold bullets andsimilar articles; but

That I claim, and desire to secure by Letters Patent, is

1. In a machine for casting bullets or similar articles, the combinationwith a vessel from which the molten metal is poured; of a plurality ofendless chains formed of series of traveling links having partial molds,the links of each series adapted to comein contactwith links of theotherseriesduringa part of their revolution, and when so in contact formwith the other links complete molds for the desired article, gates tosaid molds in said links together with mechanism for operating saidchains and for passing the molten metal from said vessel to said linkswhen so in contact, substantially as described.

2. In a machine for casting bullets or similar articles, the combinationwith a vessel from which the molten metal is poured; of a plurality ofendless chains formed of series of travelinglinks having partial molds,the links of each series adapted to come in contact wit-h links of theother series during part of their revolution and when so in contact formwith the other links complete molds for the desired article, gates tosaid molds in said links, mechanism for operating said chains and forpass ing the molten metal from said vessel to said links when so incontact, and means for revolving said chains synchronously,substantially as described.

3. In a machine for casting bullets or similar articles, the combinationwith a vessel from which the molten metal is poured; of a plurality ofendless chains formed of series of travelinglinks having partial molds,thelinks of each series adapted to comein contact with links of theother series during part of the revolution and when so in contact formwith the other links complete molds for the desired article; gates tosaid molds in said links, means for locking the links in such contact tomove synchronously; and mechanism for operating said chains and forpassing the molten metal from said vessel to said links when so incontact, substantially as described.

4. In a machine for castingbullets or similar articles, the combinationwith a series of traveling molds having gates thereto; of a vessel fromwhich the molten metal is poured; a traveling distributing devicesituated over the molds when under the outlet from said vessel adaptedto receive a continuous flow of metal from said vessel and havingperforations for distributing the molten metal to the gates of thevarious molds; and mechanism for operating said molds and distributingdevice, substantially as described.

5. In a machine forcasting bullets orsimilar articles, the combinationwith a series of traveling molds having gates thereto; of a vessel fromwhich the molten metal is poured; a traveling distributing devicesituated over the molds when under the outlet from said vessel adaptedto receive a continuous flow of metal from said vessel and havingperforations for distributing the molten metal to the gates of thevarious molds; an engagement between said series of molds anddistributing device by which one member is operated by the other; andmechanism for operating said other member, substantially as described. a

6. In a machine for casting bulletsor similar articles, the combinationwith a plurality of endless chains formed of series of traveling linkshaving partial molds, the links of each series adapted to come incontact with links of the other series during a part of theirrevolution, and when so in contact form with the other links completemolds for the desired article; said molds having gates thereto of anendless chain for distributing the molten metal situated over said linkswhen in such contact and having perforations adapted to correspond withthe gate of each of said molds when complete; and mechanism foroperating said chains, substantially as described.

7. In a machine forcasting bullets or similar articles, the combinationwith a plurality of endless chains formed of series of traveling linkshaving partial molds, the links of each series adapted to come incontact with links of the other series during a part of theirrevolution, and when so in contact form with the other links completemolds for the desired article; said molds having gates thereto of anendless chain for distributing the molten metal, situated over saidlinks when in such contact and having perforations adapted to correspondwith the gate of each of said molds when complete; and mechanism foroperating said chains at the same rate of speed, substantially asdescribed.

8. In a machine for casting bullets or similar articles, the combinationwith two endless chains formed of series of traveling links havingpartial molds, the links of each series adapted to come in contact withand correspond to links of the other series during a part of theirrevolution and when so in contact form with the other links completemolds for the desired article; of an endless chain for distributing themolten metal, formed of a series of links, each of which during a partof its revolution rests on and corresponds to a pair of links forming acomplete mold, and is provided with a perforation fitting over the gateof each complete mold; and mechanism for operating the same,substantially as described.

9. In a machine for casting bullets, or similar articles, thecombination with two endless chains revolving on the same plane andformed of series of traveling links having partial molds, the links ofeach series adapted to come in contact with links of the other seriesduring a part of their revolution and when so in contact form with theother links complete molds; of an endless chain for distributing themolten metal, formed of a series of links, which revolve in a plane atright angles to the plane of revolution of said first two series, andhave perforations therein, and during a part of their revolution passover the links of the first two series when forming complete molds; andmechanism for operating said chains, sub stantially as described.

10. In a machine for casting bullets or simi-- lar articles, thecombination with a series of traveling molds having gates therein; of anendless chain for distributing the molten metal to said molds; formed ofa series of links having a longitudinal channel on their outer surfaceand depending perforations therefrom, said chain revolving in a verticalplane and during part of its revolution having its links arranged torest on and travel with said traveling molds; and mechanism foroperating said molds and chain, substantially as described.

11. In a machine for castingbullets or similar articles, the combinationwith a series of traveling molds having gates thereto; of a vessel fromwhich the molten metal is poured; a traveling distributing devicesituated over the molds when under the outlet from said vessel, andhaving perforations for distributing the molten metal to the gates ofthe various molds; means for separating the molded bullets from saiddistributing device; and mechanism for operating said molds anddistributing device, substantially as described.

12. In a machine for casting bullets or similar articles, thecombination with a series of traveling molds having gates thereto; of avessel from which the molten metal is poured; a traveling distributingdevice situated over the molds when under the outlet from said vesseland having perforations for distributing the molten metal to the gatesof the various molds; a cutting device pivotally mount ed on saidmachine, the cutting edge of which is yieldingly held in contact withthe under side of said distributing device; and mechanism for operatingsaid molds and distributing device, substantially as described.

13. In a machine for casting bullets or similar articles, thecombination with two endless chains, formed of series of traveling linkshaving partial molds, the links of each series adapted to come incontact with links of the other series during a part of theirrevolution, and when so in contact form with the other links completemolds for the desired article; of an endless chain for distributing themolten metal, having each link provided with one or more dependingperforations and situated over a pair of links forming a complete moldduring part of its revolution; 'a cutting device for separating themolded bullet or other article from the under side of the links of saiddistributing-chain after the links of the chains forming the molds haveseparated; and mechanism for operating said chains, substantially asdescribed.

14. In a machine for casting bullets or similar articles, thecombination with two endless chains formed of links having one or morepartial molds on their outer side extending to the top thereof,andengaging lugs; of gates to said molds in said links an endlessdistributing-chain composed of links, provided with a longitudinalchannel and depending perforations corresponding to the gates of saidmolds, and lateral extensions for engagement by said engaging lugs; andmechanism for operating said endless chains, substantially as described.

15. In a machine for casting bullets or similar articles, thecombination With a plurality JOHN J. NASH.

Witnesses:

K. PENDLETON, SAMUEL H. FISHER.

